{"schemaVersion":3,"id":"USN-4455-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"nss vulnerabilities\n\nIt was discovered that NSS incorrectly handled certain signatures.\nAn attacker could possibly use this issue to expose sensitive information.\n(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)","dates":{"published":"2020-08-10T17:28:58.000Z","modified":"2026-06-29T13:48:03.822Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"nss","name":"nss","label":"nss","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/nss","purlType":"deb","versions":[{"text":"< 2:3.28.4-0ubuntu0.14.04.5+esm7","noFixRecorded":false,"fixedIn":null},{"text":"< 2:3.28.4-0ubuntu0.16.04.13","noFixRecorded":false,"fixedIn":null},{"text":"< 2:3.35-2ubuntu2.11","noFixRecorded":false,"fixedIn":null},{"text":"< 2:3.49.1-1ubuntu1.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2:3.28.4-0ubuntu0.14.04.5+esm7 | < 2:3.28.4-0ubuntu0.16.04.13 | < 2:3.35-2ubuntu2.11 | < 2:3.49.1-1ubuntu1.4","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4455-1","label":"ubuntu.com/security/notices/USN-4455-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-6829","label":"ubuntu.com/security/CVE-2020-6829","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-12400","label":"ubuntu.com/security/CVE-2020-12400","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-12401","label":"ubuntu.com/security/CVE-2020-12401","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2020-12400","CVE-2020-12401","CVE-2020-6829"],"downstream":[],"duplicates":[],"related":["CVE-2020-12400","CVE-2020-12401","CVE-2020-6829"]},"timeline":[{"kind":"published","date":"2020-08-10T17:28:58.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-29T13:48:03.822Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T08:20:21.647Z","stale":false,"partial":false}}